Patents Assigned to On-Chip Biotechnologies Co., Ltd
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Patent number: 10101261Abstract: The object of the present invention is to provide (1) a cell sorter, (2) a flow cytometer capable of detecting sideward scattered light, (3) a method for accurately measuring cell concentration, (4) a method for multicolor staining analysis without a fluorescence correction, and the like, which satisfy requirements that carry-over and cross contamination of samples do not occur.Type: GrantFiled: January 11, 2011Date of Patent: October 16, 2018Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventor: Kazuo Takeda
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Publication number: 20180231451Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.Type: ApplicationFiled: April 16, 2018Publication date: August 16, 2018Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventor: Kazuo TAKEDA
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Patent number: 9945769Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.Type: GrantFiled: January 23, 2015Date of Patent: April 17, 2018Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventor: Kazuo Takeda
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Patent number: 9506927Abstract: Conventional CTC detection methods have been problematic in that 1) there is no technique for automatically determining and counting live CTCs in a brief period of time, 2) no process has been developed for detecting, counting, and thereafter collecting and culturing live CTCs, and 3) there exists no flow cytometer that is contamination free and is capable of measuring an entire sample. Provided is a CTC detection method which comprises a pre-treatment step for concentrating and fluorescence staining CTCs, and a step for identifying and counting CTCs. The pre-treatment step includes attaching magnetic beads to EpCAM antibodies expressed by epithelial cell-derived CTCs and concentrating the CTCs through the use of a magnet, fluorescently labeling an epithelia cell surface marker of the CTCs through the use of EpCAM antibodies or 5E11 antibodies, and performing two types of nuclear staining, one being cell membrane-permeable and the other being cell membrane-impermeable.Type: GrantFiled: November 25, 2015Date of Patent: November 29, 2016Assignee: On-Chip Biotechnologies Co., Ltd.Inventors: Kazuo Takeda, Fumie Jimma, Masashi Takao
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Publication number: 20160146825Abstract: Conventional CTC detection methods have been problematic in that 1) there is no technique for automatically determining and counting live CTCs in a brief period of time, 2) no process has been developed for detecting, counting, and thereafter collecting and culturing live CTCs, and 3) there exists no flow cytometer that is contamination free and is capable of measuring an entire sample. Provided is a CTC detection method which comprises a pre-treatment step for concentrating and fluorescence staining CTCs, and a step for identifying and counting CTCs. The pre-treatment step includes attaching magnetic beads to EpCAM antibodies expressed by epithelial cell-derived CTCs and concentrating the CTCs through the use of a magnet, fluorescently labeling an epithelia cell surface marker of the CTCs through the use of EpCAM antibodies or 5E11 antibodies, and performing two types of nuclear staining, one being cell membrane-permeable and the other being cell membrane-impermeable.Type: ApplicationFiled: November 25, 2015Publication date: May 26, 2016Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventors: Kazuo TAKEDA, Fumie JIMMA, Masashi TAKAO
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Patent number: 9341550Abstract: Conventional CTC detection methods have been problematic in that 1) there is no technique for automatically determining and counting live CTCs in a brief period of time, 2) no process has been developed for detecting, counting, and thereafter collecting and culturing live CTCs, and 3) there exists no flow cytometer that is contamination free and is capable of measuring an entire sample. Provided is a CTC detection method which comprises a pre-treatment step for concentrating and fluorescence staining CTCs, and a step for identifying and counting CTCs. The pre-treatment step includes attaching magnetic beads to EpCAM antibodies expressed by epithelial cell-derived CTCs and concentrating the CTCs through the use of a magnet, fluorescently labeling an epithelia cell surface marker of the CTCs through the use of EpCAM antibodies or 5E11 antibodies, and performing two types of nuclear staining, one being cell membrane-permeable and the other being cell membrane-impermeable.Type: GrantFiled: November 21, 2011Date of Patent: May 17, 2016Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventors: Kazuo Takeda, Fumie Jimma, Masashi Takao
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Publication number: 20150140648Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.Type: ApplicationFiled: January 23, 2015Publication date: May 21, 2015Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventor: Kazuo TAKEDA
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Publication number: 20150064722Abstract: The object of the present invention is to provide an evaluation method capable of accurately determining a metastasis of cancer, the stage of cancer progression, or the malignancy of cancer.Type: ApplicationFiled: March 28, 2013Publication date: March 5, 2015Applicants: SHIZUOKA PREFECTURE, ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventors: Kazuo Takeda, Namiko Yamashita, Yuu Fujimura, Kaori Nishio, Yasuhiro Koh, Masaru Watanabe, Fumiaki Koizumi, Yuri Uehara
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Patent number: 8951474Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.Type: GrantFiled: February 5, 2010Date of Patent: February 10, 2015Assignee: On-Chip Biotechnologies Co., Ltd.Inventor: Kazuo Takeda
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Publication number: 20130302828Abstract: Conventional CTC detection methods have been problematic in that 1) there is no technique for automatically determining and counting live CTCs in a brief period of time, 2) no process has been developed for detecting, counting, and thereafter collecting and culturing live CTCs, and 3) there exists no flow cytometer that is contamination free and is capable of measuring an entire sample. Provided is a CTC detection method which comprises a pre-treatment step for concentrating and fluorescence staining CTCs, and a step for identifying and counting CTCs. The pre-treatment step includes attaching magnetic beads to EpCAM antibodies expressed by epithelial cell-derived CTCs and concentrating the CTCs through the use of a magnet, fluorescently labeling an epithelia cell surface marker of the CTCs through the use of EpCAM antibodies or 5E11 antibodies, and performing two types of nuclear staining, one being cell membrane-permeable and the other being cell membrane-impermeable.Type: ApplicationFiled: November 21, 2011Publication date: November 14, 2013Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventors: Kazuo Takeda, Fumie Jimma, Masashi Takao
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Publication number: 20120288920Abstract: The object of the present invention is to provide (1) a cell sorter, (2) a flow cytometer capable of detecting sideward scattered light, (3) a method for accurately measuring cell concentration, (4) a method for multicolor staining analysis without a fluorescence correction, and the like, which satisfy requirements that carry-over and cross contamination of samples do not occur.Type: ApplicationFiled: January 11, 2011Publication date: November 15, 2012Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventor: Kazuo Takeda
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Patent number: 8248604Abstract: An apparatus for measuring a particle in a liquid, the apparatus having a function that, using a flow channel into which a sample liquid containing a particle is introduced, a pair of flow channels into which a sheath liquid is introduced, the pair of the flow channels being arranged on the opposite sides of the flow channel and joined, and a flow channel in which these flow channels are joined and the sample liquid and the sheath liquid on the opposite sides of the sample liquid flow, applies laser light to a particle flowing in a flow channel in the flow cell, detects scattered light or fluorescence generated from the particle and analyzes the particle.Type: GrantFiled: September 24, 2009Date of Patent: August 21, 2012Assignee: On-Chip Biotechnologies Co., LtdInventor: Kazuo Takeda
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Publication number: 20110294139Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.Type: ApplicationFiled: February 5, 2010Publication date: December 1, 2011Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.Inventor: Kazuo Takeda
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Publication number: 20110069311Abstract: An apparatus and a flow cell for the same, which simultaneously fulfill the requirements of: 1) no need of cleansing a liquid sending system for each measurement; 2) enabling a sample liquid after measurement to be collected without being diluted and free from contamination; and 3) the flow cell being inexpensive are provided for a flow cytometer.Type: ApplicationFiled: September 24, 2009Publication date: March 24, 2011Applicant: On-Chip Biotechnologies Co., Ltd.Inventor: Kazuo Takeda